{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-49942", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T12:17:06.043Z", "datePublished": "2024-10-21T18:02:01.043Z", "dateUpdated": "2024-11-05T09:51:59.610Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:51:59.610Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Prevent null pointer access in xe_migrate_copy\n\nxe_migrate_copy designed to copy content of TTM resources. When source\nresource is null, it will trigger a NULL pointer dereference in\nxe_migrate_copy. To avoid this situation, update lacks source flag to\ntrue for this case, the flag will trigger xe_migrate_clear rather than\nxe_migrate_copy.\n\nIssue trace:\n<7> [317.089847] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 14,\n sizes: 4194304 & 4194304\n<7> [317.089945] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 15,\n sizes: 4194304 & 4194304\n<1> [317.128055] BUG: kernel NULL pointer dereference, address:\n 0000000000000010\n<1> [317.128064] #PF: supervisor read access in kernel mode\n<1> [317.128066] #PF: error_code(0x0000) - not-present page\n<6> [317.128069] PGD 0 P4D 0\n<4> [317.128071] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n<4> [317.128074] CPU: 1 UID: 0 PID: 1440 Comm: kunit_try_catch Tainted:\n G U N 6.11.0-rc7-xe #1\n<4> [317.128078] Tainted: [U]=USER, [N]=TEST\n<4> [317.128080] Hardware name: Intel Corporation Lunar Lake Client\n Platform/LNL-M LP5 RVP1, BIOS LNLMFWI1.R00.3221.D80.2407291239 07/29/2024\n<4> [317.128082] RIP: 0010:xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128158] Code: 00 00 48 89 8d e0 fe ff ff 48 8b 40 10 4c 89 85 c8\n fe ff ff 44 88 8d bd fe ff ff 65 48 8b 3c 25 28 00 00 00 48 89 7d d0 31\n ff <8b> 79 10 48 89 85 a0 fe ff ff 48 8b 00 48 89 b5 d8 fe ff ff 83 ff\n<4> [317.128162] RSP: 0018:ffffc9000167f9f0 EFLAGS: 00010246\n<4> [317.128164] RAX: ffff8881120d8028 RBX: ffff88814d070428 RCX:\n 0000000000000000\n<4> [317.128166] RDX: ffff88813cb99c00 RSI: 0000000004000000 RDI:\n 0000000000000000\n<4> [317.128168] RBP: ffffc9000167fbb8 R08: ffff88814e7b1f08 R09:\n 0000000000000001\n<4> [317.128170] R10: 0000000000000001 R11: 0000000000000001 R12:\n ffff88814e7b1f08\n<4> [317.128172] R13: ffff88814e7b1f08 R14: ffff88813cb99c00 R15:\n 0000000000000001\n<4> [317.128174] FS: 0000000000000000(0000) GS:ffff88846f280000(0000)\n knlGS:0000000000000000\n<4> [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n<4> [317.128178] CR2: 0000000000000010 CR3: 000000011f676004 CR4:\n 0000000000770ef0\n<4> [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n 0000000000000000\n<4> [317.128182] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7:\n 0000000000000400\n<4> [317.128184] PKRU: 55555554\n<4> [317.128185] Call Trace:\n<4> [317.128187] <TASK>\n<4> [317.128189] ? show_regs+0x67/0x70\n<4> [317.128194] ? __die_body+0x20/0x70\n<4> [317.128196] ? __die+0x2b/0x40\n<4> [317.128198] ? page_fault_oops+0x15f/0x4e0\n<4> [317.128203] ? do_user_addr_fault+0x3fb/0x970\n<4> [317.128205] ? lock_acquire+0xc7/0x2e0\n<4> [317.128209] ? exc_page_fault+0x87/0x2b0\n<4> [317.128212] ? asm_exc_page_fault+0x27/0x30\n<4> [317.128216] ? xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128263] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128265] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128267] ? sg_free_append_table+0x20/0x80\n<4> [317.128271] ? lock_acquire+0xc7/0x2e0\n<4> [317.128273] ? mark_held_locks+0x4d/0x80\n<4> [317.128275] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128278] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128281] ? __pm_runtime_resume+0x60/0xa0\n<4> [317.128284] xe_bo_move+0x682/0xc50 [xe]\n<4> [317.128315] ? lock_is_held_type+0xaa/0x120\n<4> [317.128318] ttm_bo_handle_move_mem+0xe5/0x1a0 [ttm]\n<4> [317.128324] ttm_bo_validate+0xd1/0x1a0 [ttm]\n<4> [317.128328] shrink_test_run_device+0x721/0xc10 [xe]\n<4> [317.128360] ? find_held_lock+0x31/0x90\n<4> [317.128363] ? lock_release+0xd1/0x2a0\n<4> [317.128365] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10\n [kunit]\n<4> [317.128370] xe_bo_shrink_kunit+0x11/0x20 [xe]\n<4> [317.128397] kunit_try_run_case+0x6e/0x150 [kunit]\n<4> [317.128400] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128402] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128404] kunit_generic_run_threadfn_adapter+0x1e/0x40 [ku\n---truncated---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/xe/xe_bo.c"], "versions": [{"version": "266c85885263", "lessThan": "16e0267db156", "status": "affected", "versionType": "git"}, {"version": "266c85885263", "lessThan": "8f5199b6971f", "status": "affected", "versionType": "git"}, {"version": "266c85885263", "lessThan": "7257d9c9a3c6", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/xe/xe_bo.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.14", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.3", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12-rc2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/16e0267db156f8a4ea16bfb3ac3f5743c9698df3"}, {"url": "https://git.kernel.org/stable/c/8f5199b6971f0717c2d31685953971fa2e1b9e1a"}, {"url": "https://git.kernel.org/stable/c/7257d9c9a3c6cfe26c428e9b7ae21d61f2f55a79"}], "title": "drm/xe: Prevent null pointer access in xe_migrate_copy", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-49942", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:37:35.995773Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:38:50.373Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-49942", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:37:35.995773Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:37:39.548Z"}}], "cna": {"title": "drm/xe: Prevent null pointer access in xe_migrate_copy", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "266c85885263", "lessThan": "16e0267db156", "versionType": "git"}, {"status": "affected", "version": "266c85885263", "lessThan": "8f5199b6971f", "versionType": "git"}, {"status": "affected", "version": "266c85885263", "lessThan": "7257d9c9a3c6", "versionType": "git"}], "programFiles": ["drivers/gpu/drm/xe/xe_bo.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.8"}, {"status": "unaffected", "version": "0", "lessThan": "6.8", "versionType": "semver"}, {"status": "unaffected", "version": "6.10.14", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11.3", "versionType": "semver", "lessThanOrEqual": "6.11.*"}, {"status": "unaffected", "version": "6.12-rc2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/gpu/drm/xe/xe_bo.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/16e0267db156f8a4ea16bfb3ac3f5743c9698df3"}, {"url": "https://git.kernel.org/stable/c/8f5199b6971f0717c2d31685953971fa2e1b9e1a"}, {"url": "https://git.kernel.org/stable/c/7257d9c9a3c6cfe26c428e9b7ae21d61f2f55a79"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Prevent null pointer access in xe_migrate_copy\n\nxe_migrate_copy designed to copy content of TTM resources. When source\nresource is null, it will trigger a NULL pointer dereference in\nxe_migrate_copy. To avoid this situation, update lacks source flag to\ntrue for this case, the flag will trigger xe_migrate_clear rather than\nxe_migrate_copy.\n\nIssue trace:\n<7> [317.089847] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 14,\n sizes: 4194304 & 4194304\n<7> [317.089945] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 15,\n sizes: 4194304 & 4194304\n<1> [317.128055] BUG: kernel NULL pointer dereference, address:\n 0000000000000010\n<1> [317.128064] #PF: supervisor read access in kernel mode\n<1> [317.128066] #PF: error_code(0x0000) - not-present page\n<6> [317.128069] PGD 0 P4D 0\n<4> [317.128071] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n<4> [317.128074] CPU: 1 UID: 0 PID: 1440 Comm: kunit_try_catch Tainted:\n G U N 6.11.0-rc7-xe #1\n<4> [317.128078] Tainted: [U]=USER, [N]=TEST\n<4> [317.128080] Hardware name: Intel Corporation Lunar Lake Client\n Platform/LNL-M LP5 RVP1, BIOS LNLMFWI1.R00.3221.D80.2407291239 07/29/2024\n<4> [317.128082] RIP: 0010:xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128158] Code: 00 00 48 89 8d e0 fe ff ff 48 8b 40 10 4c 89 85 c8\n fe ff ff 44 88 8d bd fe ff ff 65 48 8b 3c 25 28 00 00 00 48 89 7d d0 31\n ff <8b> 79 10 48 89 85 a0 fe ff ff 48 8b 00 48 89 b5 d8 fe ff ff 83 ff\n<4> [317.128162] RSP: 0018:ffffc9000167f9f0 EFLAGS: 00010246\n<4> [317.128164] RAX: ffff8881120d8028 RBX: ffff88814d070428 RCX:\n 0000000000000000\n<4> [317.128166] RDX: ffff88813cb99c00 RSI: 0000000004000000 RDI:\n 0000000000000000\n<4> [317.128168] RBP: ffffc9000167fbb8 R08: ffff88814e7b1f08 R09:\n 0000000000000001\n<4> [317.128170] R10: 0000000000000001 R11: 0000000000000001 R12:\n ffff88814e7b1f08\n<4> [317.128172] R13: ffff88814e7b1f08 R14: ffff88813cb99c00 R15:\n 0000000000000001\n<4> [317.128174] FS: 0000000000000000(0000) GS:ffff88846f280000(0000)\n knlGS:0000000000000000\n<4> [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n<4> [317.128178] CR2: 0000000000000010 CR3: 000000011f676004 CR4:\n 0000000000770ef0\n<4> [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n 0000000000000000\n<4> [317.128182] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7:\n 0000000000000400\n<4> [317.128184] PKRU: 55555554\n<4> [317.128185] Call Trace:\n<4> [317.128187] <TASK>\n<4> [317.128189] ? show_regs+0x67/0x70\n<4> [317.128194] ? __die_body+0x20/0x70\n<4> [317.128196] ? __die+0x2b/0x40\n<4> [317.128198] ? page_fault_oops+0x15f/0x4e0\n<4> [317.128203] ? do_user_addr_fault+0x3fb/0x970\n<4> [317.128205] ? lock_acquire+0xc7/0x2e0\n<4> [317.128209] ? exc_page_fault+0x87/0x2b0\n<4> [317.128212] ? asm_exc_page_fault+0x27/0x30\n<4> [317.128216] ? xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128263] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128265] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128267] ? sg_free_append_table+0x20/0x80\n<4> [317.128271] ? lock_acquire+0xc7/0x2e0\n<4> [317.128273] ? mark_held_locks+0x4d/0x80\n<4> [317.128275] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128278] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128281] ? __pm_runtime_resume+0x60/0xa0\n<4> [317.128284] xe_bo_move+0x682/0xc50 [xe]\n<4> [317.128315] ? lock_is_held_type+0xaa/0x120\n<4> [317.128318] ttm_bo_handle_move_mem+0xe5/0x1a0 [ttm]\n<4> [317.128324] ttm_bo_validate+0xd1/0x1a0 [ttm]\n<4> [317.128328] shrink_test_run_device+0x721/0xc10 [xe]\n<4> [317.128360] ? find_held_lock+0x31/0x90\n<4> [317.128363] ? lock_release+0xd1/0x2a0\n<4> [317.128365] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10\n [kunit]\n<4> [317.128370] xe_bo_shrink_kunit+0x11/0x20 [xe]\n<4> [317.128397] kunit_try_run_case+0x6e/0x150 [kunit]\n<4> [317.128400] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128402] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128404] kunit_generic_run_threadfn_adapter+0x1e/0x40 [ku\n---truncated---"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:51:59.610Z"}}}, "cveMetadata": {"cveId": "CVE-2024-49942", "state": "PUBLISHED", "dateUpdated": "2024-11-05T09:51:59.610Z", "dateReserved": "2024-10-21T12:17:06.043Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-10-21T18:02:01.043Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0E3AE738-A62B-4806-9D9C-933998214C6A", "versionEndExcluding": "6.10.14", "versionStartIncluding": "6.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "54D9C704-D679-41A7-9C40-10A6B1E7FFE9", "versionEndExcluding": "6.11.3", "versionStartIncluding": "6.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Prevent null pointer access in xe_migrate_copy\n\nxe_migrate_copy designed to copy content of TTM resources. When source\nresource is null, it will trigger a NULL pointer dereference in\nxe_migrate_copy. To avoid this situation, update lacks source flag to\ntrue for this case, the flag will trigger xe_migrate_clear rather than\nxe_migrate_copy.\n\nIssue trace:\n<7> [317.089847] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 14,\n sizes: 4194304 & 4194304\n<7> [317.089945] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 15,\n sizes: 4194304 & 4194304\n<1> [317.128055] BUG: kernel NULL pointer dereference, address:\n 0000000000000010\n<1> [317.128064] #PF: supervisor read access in kernel mode\n<1> [317.128066] #PF: error_code(0x0000) - not-present page\n<6> [317.128069] PGD 0 P4D 0\n<4> [317.128071] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n<4> [317.128074] CPU: 1 UID: 0 PID: 1440 Comm: kunit_try_catch Tainted:\n G U N 6.11.0-rc7-xe #1\n<4> [317.128078] Tainted: [U]=USER, [N]=TEST\n<4> [317.128080] Hardware name: Intel Corporation Lunar Lake Client\n Platform/LNL-M LP5 RVP1, BIOS LNLMFWI1.R00.3221.D80.2407291239 07/29/2024\n<4> [317.128082] RIP: 0010:xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128158] Code: 00 00 48 89 8d e0 fe ff ff 48 8b 40 10 4c 89 85 c8\n fe ff ff 44 88 8d bd fe ff ff 65 48 8b 3c 25 28 00 00 00 48 89 7d d0 31\n ff <8b> 79 10 48 89 85 a0 fe ff ff 48 8b 00 48 89 b5 d8 fe ff ff 83 ff\n<4> [317.128162] RSP: 0018:ffffc9000167f9f0 EFLAGS: 00010246\n<4> [317.128164] RAX: ffff8881120d8028 RBX: ffff88814d070428 RCX:\n 0000000000000000\n<4> [317.128166] RDX: ffff88813cb99c00 RSI: 0000000004000000 RDI:\n 0000000000000000\n<4> [317.128168] RBP: ffffc9000167fbb8 R08: ffff88814e7b1f08 R09:\n 0000000000000001\n<4> [317.128170] R10: 0000000000000001 R11: 0000000000000001 R12:\n ffff88814e7b1f08\n<4> [317.128172] R13: ffff88814e7b1f08 R14: ffff88813cb99c00 R15:\n 0000000000000001\n<4> [317.128174] FS: 0000000000000000(0000) GS:ffff88846f280000(0000)\n knlGS:0000000000000000\n<4> [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n<4> [317.128178] CR2: 0000000000000010 CR3: 000000011f676004 CR4:\n 0000000000770ef0\n<4> [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n 0000000000000000\n<4> [317.128182] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7:\n 0000000000000400\n<4> [317.128184] PKRU: 55555554\n<4> [317.128185] Call Trace:\n<4> [317.128187] <TASK>\n<4> [317.128189] ? show_regs+0x67/0x70\n<4> [317.128194] ? __die_body+0x20/0x70\n<4> [317.128196] ? __die+0x2b/0x40\n<4> [317.128198] ? page_fault_oops+0x15f/0x4e0\n<4> [317.128203] ? do_user_addr_fault+0x3fb/0x970\n<4> [317.128205] ? lock_acquire+0xc7/0x2e0\n<4> [317.128209] ? exc_page_fault+0x87/0x2b0\n<4> [317.128212] ? asm_exc_page_fault+0x27/0x30\n<4> [317.128216] ? xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128263] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128265] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128267] ? sg_free_append_table+0x20/0x80\n<4> [317.128271] ? lock_acquire+0xc7/0x2e0\n<4> [317.128273] ? mark_held_locks+0x4d/0x80\n<4> [317.128275] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128278] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128281] ? __pm_runtime_resume+0x60/0xa0\n<4> [317.128284] xe_bo_move+0x682/0xc50 [xe]\n<4> [317.128315] ? lock_is_held_type+0xaa/0x120\n<4> [317.128318] ttm_bo_handle_move_mem+0xe5/0x1a0 [ttm]\n<4> [317.128324] ttm_bo_validate+0xd1/0x1a0 [ttm]\n<4> [317.128328] shrink_test_run_device+0x721/0xc10 [xe]\n<4> [317.128360] ? find_held_lock+0x31/0x90\n<4> [317.128363] ? lock_release+0xd1/0x2a0\n<4> [317.128365] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10\n [kunit]\n<4> [317.128370] xe_bo_shrink_kunit+0x11/0x20 [xe]\n<4> [317.128397] kunit_try_run_case+0x6e/0x150 [kunit]\n<4> [317.128400] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128402] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128404] kunit_generic_run_threadfn_adapter+0x1e/0x40 [ku\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/xe: Impedir el acceso a puntero nulo en xe_migrate_copy xe_migrate_copy est\u00e1 dise\u00f1ado para copiar el contenido de los recursos de TTM. Cuando el recurso de origen es nulo, activar\u00e1 una desreferencia de puntero NULL en xe_migrate_copy. Para evitar esta situaci\u00f3n, actualice el indicador de origen a verdadero para este caso; el indicador activar\u00e1 xe_migrate_clear en lugar de xe_migrate_copy. Rastreo de problemas: &lt;7&gt; [317.089847] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Paso 14, tama\u00f1os: 4194304 y 4194304 &lt;7&gt; [317.089945] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Paso 15, tama\u00f1os: 4194304 y 4194304 &lt;1&gt; [317.128055] ERROR: desreferencia de puntero NULL del n\u00facleo, direcci\u00f3n: 0000000000000010 &lt;1&gt; [317.128064] #PF: acceso de lectura del supervisor en modo n\u00facleo &lt;1&gt; [317.128066] #PF: error_code(0x0000) - no presente p\u00e1gina &lt;6&gt; [317.128069] PGD 0 P4D 0 &lt;4&gt; [317.128071] Ups: Ups: 0000 [#1] PREEMPT SMP NOPTI &lt;4&gt; [317.128074] CPU: 1 UID: 0 PID: 1440 Comm: kunit_try_catch Contaminado: G U N 6.11.0-rc7-xe #1 &lt;4&gt; [317.128078] Contaminado: [U]=USUARIO, [N]=PRUEBA &lt;4&gt; [317.128080] Nombre del hardware: Intel Corporation Lunar Lake Client Platform/LNL-M LP5 RVP1, BIOS LNLMFWI1.R00.3221.D80.2407291239 29/07/2024 &lt;4&gt; [317.128082] RIP: 0010:xe_migrate_copy+0x66/0x13e0 [xe] &lt;4&gt; [317.128158] C\u00f3digo: 00 00 48 89 8d e0 fe ff ff 48 8b 40 10 4c 89 85 c8 fe ff ff 44 88 8d bd fe ff ff 65 48 8b 3c 25 28 00 00 00 48 89 7d d0 31 ff &lt;8b&gt; 79 10 48 89 85 a0 fe ff ff 48 8b 00 48 89 b5 d8 fe ff ff 83 ff &lt;4&gt; [317.128162] RSP: 0018:ffffc9000167f9f0 EFLAGS: 00010246 &lt;4&gt; [317.128164] RAX: ffff8881120d8028 RBX: ffff88814d070428 RCX: 0000000000000000 &lt;4&gt; [317.128166] X: ffff88813cb99c00 RSI: 0000000004000000 RDI: 0000000000000000 &lt;4&gt; [317.128168] RBP: ffffc9000167fbb8 R08: ffff88814e7b1f08 R09: 00000000000000001 &lt;4&gt; [317.128170] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88814e7b1f08 &lt;4&gt; [317.128172] R13: ffff88814e7b1f08 R14: ffff88813cb99c00 R15: 0000000000000001 &lt;4&gt; [317.128174] FS: 0000000000000000(0000) GS:ffff88846f280000(0000) knlGS:0000000000000000 &lt;4&gt; [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 &lt;4&gt; [317.128178] CR2: 000000000000010 CR3: 000000011f676004 CR4: 0000000000770ef0 &lt;4&gt; [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 &lt;4&gt; [317.128182] DR3: knlGS:0000000000000000 &lt;4&gt; [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 &lt;4&gt; [317.128178] CR2: 0000000000000010 CR3: 000000011f676004 CR4: 0000000000770ef0 &lt;4&gt; [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 &lt;4&gt; [317.128182] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400 &lt;4&gt; [317.128184] PKRU: 55555554 &lt;4&gt; [317.128185] Seguimiento de llamadas: &lt;4&gt; [317.128187] &lt;4&gt; [317.128189] ? show_regs+0x67/0x70 &lt;4&gt; [317.128194] ? __die_body+0x20/0x70 &lt;4&gt; [317.128196] ? __die+0x2b/0x40 &lt;4&gt; [317.128198] ? page_fault_oops+0x15f/0x4e0 &lt;4&gt; [317.128203] ? do_user_addr_fault+0x3fb/0x970 &lt;4&gt; [317.128205] ? lock_acquire+0xc7/0x2e0 &lt;4&gt; [317.128209]? exc_page_fault+0x87/0x2b0 &lt;4&gt; [317.128212] ? asm_exc_page_fault+0x27/0x30 &lt;4&gt; [317.128216] ? xe_migrate_copy+0x66/0x13e0 [xe] &lt;4&gt; [317.128263] ? __lock_acquire+0xb9d/0x26f0 &lt;4&gt; [317.128265] ? __lock_acquire+0xb9d/0x26f0 &lt;4&gt; [317.128267] ? sg_free_append_table+0x20/0x80 &lt;4&gt; [317.128271] ? lock_acquire+0xc7/0x2e0 &lt;4&gt; [317.128273] ? mark_held_locks+0x4d/0x80 &lt;4&gt; [317.128275] ? trace_hardirqs_on+0x1e/0xd0 &lt;4&gt; [317.128278] ? __pm_runtime_resume+0x60/0xa0 &lt;4&gt; [317.128284] xe_bo_move+0x682/0xc50 [xe] &lt;4&gt; [317.128315] ? lock_is_held_type+0xaa/0x120 &lt;4&gt; [317.128318] ttm_bo_handle_move_mem+0xe5/0x1a0 [ttm] &lt;4&gt; [317.128324] ttm_bo_validate+0xd1/0x1a0 [ttm] &lt;4&gt; [317.128328] +0x721/0xc10 [xe] &lt"}], "id": "CVE-2024-49942", "lastModified": "2024-10-25T14:56:59.397", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-10-21T18:15:15.843", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16e0267db156f8a4ea16bfb3ac3f5743c9698df3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7257d9c9a3c6cfe26c428e9b7ae21d61f2f55a79"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8f5199b6971f0717c2d31685953971fa2e1b9e1a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/xe: Prevent null pointer access in xe_migrate_copy", "id": "2320445", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320445"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/xe: Prevent null pointer access in xe_migrate_copy\nxe_migrate_copy designed to copy content of TTM resources. When source\nresource is null, it will trigger a NULL pointer dereference in\nxe_migrate_copy. To avoid this situation, update lacks source flag to\ntrue for this case, the flag will trigger xe_migrate_clear rather than\nxe_migrate_copy.\nIssue trace:\n<7> [317.089847] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 14,\nsizes: 4194304 & 4194304\n<7> [317.089945] xe 0000:00:02.0: [drm:xe_migrate_copy [xe]] Pass 15,\nsizes: 4194304 & 4194304\n<1> [317.128055] BUG: kernel NULL pointer dereference, address:\n0000000000000010\n<1> [317.128064] #PF: supervisor read access in kernel mode\n<1> [317.128066] #PF: error_code(0x0000) - not-present page\n<6> [317.128069] PGD 0 P4D 0\n<4> [317.128071] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n<4> [317.128074] CPU: 1 UID: 0 PID: 1440 Comm: kunit_try_catch Tainted:\nG U N 6.11.0-rc7-xe #1\n<4> [317.128078] Tainted: [U]=USER, [N]=TEST\n<4> [317.128080] Hardware name: Intel Corporation Lunar Lake Client\nPlatform/LNL-M LP5 RVP1, BIOS LNLMFWI1.R00.3221.D80.2407291239 07/29/2024\n<4> [317.128082] RIP: 0010:xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128158] Code: 00 00 48 89 8d e0 fe ff ff 48 8b 40 10 4c 89 85 c8\nfe ff ff 44 88 8d bd fe ff ff 65 48 8b 3c 25 28 00 00 00 48 89 7d d0 31\nff <8b> 79 10 48 89 85 a0 fe ff ff 48 8b 00 48 89 b5 d8 fe ff ff 83 ff\n<4> [317.128162] RSP: 0018:ffffc9000167f9f0 EFLAGS: 00010246\n<4> [317.128164] RAX: ffff8881120d8028 RBX: ffff88814d070428 RCX:\n0000000000000000\n<4> [317.128166] RDX: ffff88813cb99c00 RSI: 0000000004000000 RDI:\n0000000000000000\n<4> [317.128168] RBP: ffffc9000167fbb8 R08: ffff88814e7b1f08 R09:\n0000000000000001\n<4> [317.128170] R10: 0000000000000001 R11: 0000000000000001 R12:\nffff88814e7b1f08\n<4> [317.128172] R13: ffff88814e7b1f08 R14: ffff88813cb99c00 R15:\n0000000000000001\n<4> [317.128174] FS: 0000000000000000(0000) GS:ffff88846f280000(0000)\nknlGS:0000000000000000\n<4> [317.128176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n<4> [317.128178] CR2: 0000000000000010 CR3: 000000011f676004 CR4:\n0000000000770ef0\n<4> [317.128180] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n0000000000000000\n<4> [317.128182] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7:\n0000000000000400\n<4> [317.128184] PKRU: 55555554\n<4> [317.128185] Call Trace:\n<4> [317.128187] <TASK>\n<4> [317.128189] ? show_regs+0x67/0x70\n<4> [317.128194] ? __die_body+0x20/0x70\n<4> [317.128196] ? __die+0x2b/0x40\n<4> [317.128198] ? page_fault_oops+0x15f/0x4e0\n<4> [317.128203] ? do_user_addr_fault+0x3fb/0x970\n<4> [317.128205] ? lock_acquire+0xc7/0x2e0\n<4> [317.128209] ? exc_page_fault+0x87/0x2b0\n<4> [317.128212] ? asm_exc_page_fault+0x27/0x30\n<4> [317.128216] ? xe_migrate_copy+0x66/0x13e0 [xe]\n<4> [317.128263] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128265] ? __lock_acquire+0xb9d/0x26f0\n<4> [317.128267] ? sg_free_append_table+0x20/0x80\n<4> [317.128271] ? lock_acquire+0xc7/0x2e0\n<4> [317.128273] ? mark_held_locks+0x4d/0x80\n<4> [317.128275] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128278] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128281] ? __pm_runtime_resume+0x60/0xa0\n<4> [317.128284] xe_bo_move+0x682/0xc50 [xe]\n<4> [317.128315] ? lock_is_held_type+0xaa/0x120\n<4> [317.128318] ttm_bo_handle_move_mem+0xe5/0x1a0 [ttm]\n<4> [317.128324] ttm_bo_validate+0xd1/0x1a0 [ttm]\n<4> [317.128328] shrink_test_run_device+0x721/0xc10 [xe]\n<4> [317.128360] ? find_held_lock+0x31/0x90\n<4> [317.128363] ? lock_release+0xd1/0x2a0\n<4> [317.128365] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10\n[kunit]\n<4> [317.128370] xe_bo_shrink_kunit+0x11/0x20 [xe]\n<4> [317.128397] kunit_try_run_case+0x6e/0x150 [kunit]\n<4> [317.128400] ? trace_hardirqs_on+0x1e/0xd0\n<4> [317.128402] ? _raw_spin_unlock_irqrestore+0x31/0x60\n<4> [317.128404] kunit_generic_run_threadfn_adapter+0x1e/0x40 [ku\n---truncated---"], "name": "CVE-2024-49942", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-49942\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-49942\nhttps://lore.kernel.org/linux-cve-announce/2024102128-CVE-2024-49942-b97c@gregkh/T"], "threat_severity": "Moderate"}